Wednesday afternoon - Poster Presentations - Screen3
- Oleg Belyakov (IAEA)
9. Dosimetric evaluation of newly developed well-type ionization chamber for use in the calibration of brachytherapy sources
Sathiyan Saminathan (Kidwai Memorial Institute of Oncology)
6/21/17, 3:30 PM
PURPOSE: To evaluate the dosimetric characteristics of newly developed well-type ionization chamber and to compare the results with the commercially available calibrated well-type ionization chambers that are being used for the calibration of brachytherapy sources. METHOS AND MATERIALS: The newly developed well-type ionization chamber (BDS 1000) has been designed for convenient use in...
75. Evaluation of metallic implant artefact on photon beam calculation algorithms: a study using CIRS thorax phantom
George Felix Acquah (Sweden Ghana Medical Centre)
6/21/17, 3:35 PM
The aim of this study was to evaluate the effect of metallic artifact on dose calculations for patients with metallic implants and to find ways in reducing the errors associated with actual dose delivered. The error magnitude in dose calculations using two different treatment planning system (TPS) algorithms and dose measurements in a CIRS (Model 002LFC) IMRT thorax phantom with a metal insert...
93. Workshop summary - Design characteristics of novel radiotherapy technology for challenging environments: improving access to radiotherapy
David Jaffray (University Health Network)
6/21/17, 3:40 PM
Many low-to-middle income countries (LMICs) suffer from a debilitating lack of radiotherapy. This problem will only be exacerbated with the increase in cancer incidence expected in these nations. The Global Task Force on Radiotherapy for Cancer Control, a Commission of the Lancet Oncology, estimated 12 600 megavoltage treatment machines are needed to meet the radiotherapy demands in LMICs by...
177. Frameless volumetric intracraneal stereotactic radiosurgery with non coplanar arcs: clinical experience, accuracy and dosimetric evaluation
Bertha GARCIA (RED AUNA - CLINICA DELGADO)
6/21/17, 3:45 PM
INTRODUCTION: In the last decades technological advances are increasing with the development of new treatment techniques and ways to deliver cranial radiosurgery (SRS), that is based into precision and accuracy, Volumetric Arc Therapy (VMAT) have been used in brain radio surgery in terms of non coplanar rotational arc beams with the aid of multi-leaf (MLC) to provide beam collimation. Using...
255. Evaluation and validation of the Fast Superposition, Superposition and FFT Convolution algorithms for IMRT of low density treatment sites on CMS XiO Treatment Planning System.
Walter Nyakodzwe (The Cancer Center Bahamas)
6/21/17, 3:50 PM
Dose calculating algorithms play an important role in patient treatment planning in radiotherapy. Morden complex treatment techniques for example intensity modulated radiotherapy (IMRT) require accurate and fast dose calculating algorithm to enhance delivery of quality in the treatment of low density sites. The study evaluated three algorithms used in IMRT and these include Superposition,...
L. John Schreiner (Cancer Centre of Southeastern Ontario at KGH)
6/21/17, 3:55 PM
Introduction: The invention of the cobalt-60 (Co-60) treatment unit in the 1950’s established high energy radiation therapy, but the use of Co-60 treatment began to decline in the late 1970s. At that time linear accelerator based radiation treatment became prevalent, especially in the developed world where today utilization standards recommend that 50% of cancer patients would benefit from...